Check SU binary using 'which'

The su command lets you switch the current user to any other user. If you need to run a command as a different (non-root) user, use the –l [username] option to specify the user account. Additionally,su can also be used to change to a different shell interpreter on the fly.

su is an older but more fully-featured command. It can duplicate the functionality of sudo by use of the –c option to pass a single command to the shell.

• A variation on the checking for SU, this attempts a 'which su'

Your task is to bypass root detecting using find su binary location via which command. you can verify your flag at http://ctf.hpandro.raviramesh.info